Force quit the app
Double tap the home button to open the app switch and swipe up on the app to force quite it. This can resolve many problems.
Restart your Device
A lot of issues are easily resolved by simply restarting your iPhone or iPod Touch. If you are having problems, try this first.
Reinstall the app
To reinstall your app first delete it from your device, then go to the App Store and buy it again. You won’t get charged if you previously bought the app.
Redeeming Promo Codes
To redeem a promo code go to the App Store and click on the little downward pointing arrow righ of your Apple ID on the top right, then click redeem. Enter your code and confirm.
Help with a specific app
If you have a question to a specific app, you can check out the FAQ.